Gas pricing method based on compound internet of things (IOT) and IOT system

ABSTRACT

The present invention relates to the field of Internet of Things (IoT), and provides a gas pricing method based on a compound IoT and an IoT system. The method is applied to the system. The system includes a user platform, a service platform, a plurality of management sub-platforms, a sensor network platform and a plurality of object sub-platforms; and each of the object sub-platforms includes a gas meter. According to the gas pricing method based on the compound IoT and the IoT system, a user can sense the benefit of gas saving directly from a fee, thereby helping push a gas-saving social morality.

TECHNICAL FIELD

The present invention relates to the field of Internet of Things (IoT),and in particular to a gas pricing method based on a compound IoT and anIoT system.

BACKGROUND

In order to encourage the public to develop a social spirit of energyconservation and environmental protection, a gas tiered pricing chargerule is pushed forward by the government and gas company. With a largergas usage amount, the charge standard is higher so as to limit the gasusage amount of a user. However, such a manner is applied only to a userwithout a large gas demand. For a user with a very large gas demand, abasic demand is up to a high pricing tier, the tiered pricing cannotachieve the purpose of making the user save the gas, and this type ofuser also cannot enjoy the benefit of gas saving.

SUMMARY OF THE INVENTION

In view of this, an objective of the present invention is to provide agas pricing method based on a compound IoT and an IoT system tointuitively reduce a gas fee of a user and motivate the user to savegas.

To this end, the technical solutions adopted by the present inventionare as follows:

According to a first aspect, the present invention provides a gaspricing method based on a compound IoT; the method is applied to an IoTsystem; the IoT system includes a user platform, a service platform, aplurality of management sub-platforms, a sensor network platform and aplurality of object sub-platforms; each of the object sub-platformsincludes a gas meter; and the method includes:

sending, by each of the object sub-platforms, gas data of acorresponding gas meter to a corresponding management sub-platform viathe sensor network platform;

calculating, by each of the management sub-platforms, a month-on-monthreduction rate for a gas usage amount of each gas meter within a presettime interval according to gas data of each gas meter, and sending thecalculated month-on-month reduction rate for the gas usage amount ofeach gas meter to the service platform;

sorting, by the service platform, the month-on-month reduction raterespectively sent by the plurality of management sub-platforms for thegas usage amount of each gas meter, and calculating a gas fee of eachgas meter according to the sorted month-on-month reduction rate for thegas usage amount of each gas meter; and

sending, by the service platform, the sorted month-on-month reductionrate for the gas usage amount of each gas meter and the gas fee of eachgas meter to the user platform.

Further, the step of calculating a gas fee of each gas meter accordingto the sorted month-on-month reduction rate for the gas usage amount ofeach gas meter includes:

calculating the gas fee of each gas meter according to a preset pricingrule; and

reducing, according to a reduction rule, gas fees of gas meters of whichthe ranks of month-on-month reduction rates are located in a presetranking interval.

Further, the reducing, according to a preset reduction rule, of gas feesof gas meters of which the ranks of month-on-month reduction rates arelocated in a preset ranking interval includes:

reducing by 10% respectively for gas fees of gas meters of which themonth-on-month reduction rates rank top 10%.

Further, each of the management sub-platforms calculates themonth-on-month reduction rate for the gas usage amount of each gas meterin terms of a following formula:

$\theta = \frac{y - x}{y}$

where, the θ is a month-on-month reduction rate, the x is gas data of agas meter in the current month, and the y is average gas data of the gasmeter in previous several months of the current month.

Further, the method includes: displaying, by the user platform, sortedmonth-on-month reduction rates for gas usage amounts of gas meters andcorresponding gas fees.

According to a second aspect, the present invention provides an IoTsystem; the IoT system includes a user platform, a service platform, aplurality of management sub-platforms, a sensor network platform and aplurality of object sub-platforms; the plurality of object sub-platformsare communicatively connected with the plurality of managementsub-platforms via the sensor network platform; the plurality ofmanagement sub-platforms are communicatively connected with the serviceplatform; the service platform is communicatively connected with theuser platform; and each of the object sub-platforms includes a gasmeter;

each of the object sub-platforms is configured to send gas data of acorresponding gas meter to a corresponding management sub-platform viathe sensor network platform;

each of the management sub-platforms is configured to calculate amonth-on-month reduction rate for a gas usage amount of each gas meterwithin a preset time interval according to gas data of each gas meter,and send the calculated month-on-month reduction rate for the gas usageamount of each gas meter to the service platform; and

the service platform is configured to sort the month-on-month reductionrate respectively sent by the plurality of management sub-platforms forthe gas usage amount of each gas meter, calculate a gas fee of each gasmeter according to the sorted month-on-month reduction rate for the gasusage amount of each gas meter, and send the sorted month-on-monthreduction rate for the gas usage amount of each gas meter and the gasfee of each gas meter to the user platform.

Further, the service platform is configured to calculate the gas fee ofeach gas meter according to a preset pricing rule; and reduce, accordingto a preset reduction rule, gas fees of gas meters of which the ranks ofmonth-on-month reduction rates are located in a preset ranking interval.

Further, the service platform is configured to reduce by 10%respectively for gas fees of gas meters of which the month-on-monthreduction rates rank top 10%.

Further, each of the management sub-platforms calculates themonth-on-month reduction rate for the gas usage amount of each gas meterin terms of a following formula:

$\theta = \frac{y - x}{y}$

where, the θ is a month-on-month reduction rate, the x is gas data of agas meter in the current month, and the y is average gas data of the gasmeter in previous several months of the current month.

Further, the user platform is configured to display sortedmonth-on-month reduction rates for gas usage amounts of gas meters andcorresponding gas fees.

The present invention provides a gas pricing method based on a compoundIoT and an IoT system. The method is applied to the IoT system. The IoTsystem includes a user platform, a service platform, a plurality ofmanagement sub-platforms, a sensor network platform and a plurality ofobject sub-platforms; and each of the object sub-platforms includes agas meter. The method includes: sending, by each of the objectsub-platforms, gas data of a corresponding gas meter to a correspondingmanagement sub-platform via the sensor network platform; calculating, byeach of the management sub-platforms, a month-on-month reduction ratefor a gas usage amount of each gas meter within a preset time intervalaccording to gas data of each gas meter, and sending the calculatedmonth-on-month reduction rate for the gas usage amount of each gas meterto the service platform; sorting, by the service platform, themonth-on-month reduction rate respectively sent by the plurality ofmanagement sub-platforms for the gas usage amount of each gas meter, andcalculating a gas fee of each gas meter according to the sortedmonth-on-month reduction rate for the gas usage amount of each gasmeter; and sending, by the service platform, the sorted month-on-monthreduction rate for the gas usage amount of each gas meter and the gasfee of each gas meter to the user platform. According to the presentinvention, by making a statistics of data of all gas meters in a specialregion, such as a residence community or an area, calculating themonth-on-month reduction rate for the gas usage amount of each gasmeter, and calculating the gas fee according to a rank of themonth-on-month reduction rate, an encouragement is given to a user whosaves gas, and the user senses the benefit of gas saving directly fromthe fee, thereby helping push a gas-saving social morality.

To make the above objectives, characteristics and advantages of thepresent invention more apparent and understandable, preferredembodiments are set forth hereinafter and are described below in detailin combination with accompanying drawings.

BRIEF DESCRIPTION OF DRAWINGS

To make the objectives, technical solutions and advantages of theembodiments of the present invention clearer, a clear and completedescription of the technical solutions in the present invention will begiven below in combination with the accompanying drawings in theembodiments of the present invention. Apparently, the embodimentsdescribed below are a part, but not all, of the embodiments of thepresent invention. Generally, a component, described and illustrated inthe accompanying drawings, in the embodiments of the present inventionmay be disposed and designed in various different configurations.Therefore, the following detailed description concerning the embodimentsof the present invention and provided in the accompanying drawings isnot intended to limit a claimed scope of the present invention, butmerely represents selected embodiments of the present invention. All ofthe other embodiments, obtained by a person of ordinary skill in the artbased on the embodiments of the present invention without any inventiveefforts, fall into the protection scope of the present invention.

FIG. 1 illustrates a compositional schematic diagram of an IoT systemprovided by an embodiment of the present invention;

FIG. 2 illustrates a flowchart of a gas pricing method based on acompound IoT provided by an embodiment of the present invention; and

FIG. 3 and FIG. 4 respectively illustrate a schematic diagram of anapplication scenario of a gas pricing method based on a compound IoTprovided by an embodiment of the present invention.

Numerals in the drawings: 100—IoT system; 10—user platform; 20—serviceplatform; 30—management service platform; 40—sensor network platform;50—object sub-platform.

DESCRIPTION OF EMBODIMENTS

A clear and complete description of the technical solutions in thepresent invention will be given below in combination with theaccompanying drawings in the embodiments of the present invention.Apparently, the embodiments described below are a part, but not all, ofthe embodiments of the present invention. Generally, a component,described and illustrated in the accompanying drawings, in theembodiments of the present invention may be disposed and designed invarious different configurations. Therefore, the following detaileddescription concerning the embodiments of the present invention andprovided in the accompanying drawings is not intended to limit a claimedscope of the present invention, but merely represents selectedembodiments of the present invention. All of the other embodiments,obtained by those skilled in the art based on the embodiments of thepresent invention without any inventive efforts, fall into theprotection scope of the present invention.

Referring to FIG. 1, a gas pricing method based on a compound IoTprovided by an embodiment of the present invention is applied to an IoTsystem 100. The IoT system 100 includes a user platform 10, a serviceplatform 20, a plurality of management sub-platforms 30, a sensornetwork platform 40 and a plurality of object sub-platforms 50. Herein,the plurality of object sub-platforms 50 may be communicativelyconnected with the plurality of management sub-platforms 30 via thesensor network platform 40 so as to send data of the objectsub-platforms 50 to the management sub-platforms 30. Each of the objectsub-platforms 50 communicates with a corresponding managementsub-platform 30, e.g., all object sub-platforms 50 in one residencecommunity communicate with one management sub-platform 30, and allobject sub-platforms 50 in another residence community communicate withanother management sub-platform 30. Each of the management sub-platforms30 is communicatively connected with the service platform 20. Theservice platform 20 is communicatively connected with the user platform10, and is configured to push gas notifications to the user platform 10.The management sub-platforms 30 and the service platform 20 each may beservers. Each of the management sub-platforms 30 may be a managementserver of a gas company; and the service platform 20 may be a fee serverof the gas company.

Referring to FIG. 2, the gas pricing method based on the compound IoTincludes the following steps:

Step S1, each of the object sub-platforms sends gas data of acorresponding gas meter to a corresponding management sub-platform via asensor network platform.

The sensor network platform 40 may be a gateway, and a plurality ofobject sub-platforms 50 send gas data to the corresponding managementsub-platform 30 via one gateway. A frequency that the objectsub-platforms 50 send the gas data to the management sub-platform 30 maybe set as required, e.g., the gas data may be sent once every othermonth, or once every quarter, which is not limited by this embodiment ofthe present invention thereto.

Step S2, each of the management sub-platforms calculates amonth-on-month reduction rate for a gas usage amount of each gas meterwithin a preset time interval according to gas data of each gas meter.

The gas data of each gas meter represents a gas usage amount used byeach user in a predetermined time. For example, if an objectsub-platform 50 sends gas data to a management sub-platform 30 onceevery other month, the gas data represents a gas amount used by a userwithin one month. After a gas amount used in this month and gas data ofother months in a preset time interval are calculated, a month-on-monthreduction rate for the gas usage amount is obtained, e.g., amonth-on-month reduction rate for the gas usage amount in this month iscalculated by comparing the gas usage amount in this month with that inlast month. Certainly, it is possible that data in continuous two monthsis not representative and cannot reflect a gas using habit of the user,e.g., the user has an emergency situation in the last month, too much orlittle gas was used, and thus a month-on-month reduction rate for a gasusage amount in current month is small or large and is notrepresentative. In this embodiment, the preset time interval is set toat least six months, and month-on-month reduction rates for continuoussix months are calculated to guarantee the fairness. Specifically, acalculation formula is as follows:

$\theta = {\frac{y - x}{y} \times 100\%}$

where, the θ is a month-on-month reduction rate, the x is gas data of agas meter in the current month, and the y is average gas data of the gasmeter in previous several months of the current month. For example, ifthe gas usage amount of a user in the current month is 40 m³, and gasusage amounts in previous five months respectively were 40 m³, 50 m³, 45m³, 55 m³ and 35 m³, an average value for the gas usage amounts in theprevious five months is (40+50+45+55+35)÷5=45 m³, and the value isbought to the above formula.

${\theta = {{\frac{{45} - {40}}{45} \times 100\%} =}}11.11\%$

The calculated month-on-month reduction rate for the gas usage amount ofthe user in the current month is 11.11%.

The month-on-month reduction rate for the gas usage amount of each gasmeter is calculated in terms of the above manner.

Step S3, each of the management sub-platforms sends the calculatedmonth-on-month reduction rate for the gas usage amount of each gas meterto the service platform.

Each of the management sub-platforms 30 calculates month-on-monthreduction rates for gas usage amounts of respective managed gas metersand then sends the calculated month-on-month reduction rates to theservice platform 20 for summarization.

Step S4, the service platform sorts the month-on-month reduction raterespectively sent by the plurality of management sub-platforms for thegas usage amount of each gas meter.

The service platform 20 sorts month-on-month reduction rates for gasusage amounts of a plurality of gas meters, and may, for example, sortthe month-on-month reduction rates in descending or ascending sequence.Preferably, in this embodiment, the month-on-month reduction rates aresorted in descending sequence.

Step S5, the service platform calculates a gas fee of each gas meteraccording to the sorted month-on-month reduction rate for the gas usageamount of each gas meter.

For encouragement of gas saving, in this embodiment, the gas fee of eachgas meter is calculated according to the sorted month-on-month reductionrate for the gas usage amount of each gas meter and gas data of each gasmeter. For example, for a gas meter of which the month-on-monthreduction rate reaches a preset standard, a certain fee is reduced. Inthis embodiment, first of all, the gas fee of each gas meter needs to becalculated according to a preset pricing rule, where the preset pricingrule is an existing tiered pricing rule, and the gas fee of each gasmeter is calculated according to the tiered pricing rule and the gasusage amount of each gas meter. Then, gas fees of gas meters of whichthe ranks of month-on-month reduction rates are located in a presetranking interval are reduced according to a preset reduction rule.Preferably, gas fees of gas meters ranking top are reduced in general.For example, gas fees of gas meters of which the month-on-monthreduction rates rank top 10% are reduced by 10% respectively.

Step S6, the service platform sends the sorted month-on-month reductionrate for the gas usage amount of each gas meter and the gas fee of eachgas meter to the user platform.

In this embodiment of the present invention, the user platform 10 may bea gas recharge terminal in a residence community or an area, such as arecharge terminal for property management in a residence community, or arecharge terminal for supermarkets in an area.

Step S7, the user platform displays sorted month-on-month reductionrates for gas usage amounts of gas meters and corresponding gas fees.

Referring to FIG. 3 and FIG. 4, the user platform 10 displays the sortedmonth-on-month reduction rates for the gas usage amounts of the gasmeters and the corresponding gas fees, which may be displayed to a userfor fee payment and make the user feel more intuitive.

In conclusion, the embodiment of the present invention provides a gaspricing method based on a compound IoT and an IoT system. The gaspricing method based on the compound IoT is applied to the IoT system.The IoT system includes a user platform, a service platform, a pluralityof management sub-platforms, a sensor network platform and a pluralityof object sub-platforms; and each of the object sub-platforms includes agas meter. The method includes: sending, by each of the objectsub-platforms, gas data of a corresponding gas meter to a correspondingmanagement sub-platform via the sensor network platform; calculating, byeach of the management sub-platforms, a month-on-month reduction ratefor a gas usage amount of each gas meter within a preset time intervalaccording to gas data of each gas meter, and sending the calculatedmonth-on-month reduction rate for the gas usage amount of each gas meterto the service platform; sorting, by the service platform, themonth-on-month reduction rate respectively sent by the plurality ofmanagement sub-platforms for the gas usage amount of each gas meter, andcalculating a gas fee of each gas meter according to the sortedmonth-on-month reduction rate for the gas usage amount of each gasmeter; and sending, by the service platform, the sorted month-on-monthreduction rate for the gas usage amount of each gas meter and the gasfee of each gas meter to the user platform. According to the presentinvention, by making a statistics of data of all gas meters in a specialregion, such as a residence community or an area, calculating themonth-on-month reduction rate for the gas usage amount of each gasmeter, and calculating the gas fee according to a rank of themonth-on-month reduction rate, an encouragement is given to a user whosaves gas, and the user senses the benefit of gas saving directly fromthe fee, thereby helping push a gas-saving social morality.

In several embodiments provided by the present application, it should beunderstood that the disclosed apparatus and method may also beimplemented in other manners. The described apparatus embodiments aremerely exemplary. For example, the flowcharts and block diagrams in thedrawings illustrate the system architecture, function, and operation ofpossible implementations of apparatuses, methods, and computer programproducts according to various embodiments of the present invention. Inthis regard, each block in the flowcharts or block diagrams mayrepresent a module, program segment, or portion of code, which includesone or more executable instructions for implementing the specifiedlogical function(s). It should also be noted that in some alternativeimplementation manners, the functions noted in the block may occur outof the sequence noted in the drawings. For example, two continuousblocks, in fact, may be executed concurrently, or in a reverse order,which will depend upon the functions involved. It will also be notedthat each block of the block diagrams and/or flowcharts, andcombinations of blocks in the block diagrams and/or flowcharts, may beimplemented by a special hardware-based IoT system that performs thespecified functions or acts, or by using combinations of specialhardware and computer instructions.

In addition, each module in the embodiments of the present invention mayexist independently, and two or more modules may be integrated into anindependent part.

When a function is implemented in the form of the software functionalunit and sold or used as a separate product, the function may be storedin a computer readable storage medium. Based on such understanding, thetechnical solutions of the present invention or the part that makescontributions to the prior art or a part of the technical solutions maybe substantially embodied in a form of a software product. The computersoftware product is stored in a storage medium, and includes severalinstructions to instruct a computer device (which may be a personalcomputer, server, network device, or the like) to execute all or somesteps of the methods described in the embodiments of the presentinvention. The foregoing storage medium includes: various media capableof storing a program code, such as a disk, a mobile hard disk, aRead-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk oran optical disk. It should also be noted that, in the description, suchrelation terms as first and second are merely used for distinguishingone entity or operation from the other entity or operation, rather thanrequiring or hinting that these entities or operations have anypractical relation or sequence. Moreover, the terms “comprise”,“include” or any other variant are intended to cover non-exclusiveinclusion, so that the processes, methods, articles or devices includinga series of factors not only include those factors, but also includeother factors listed implicitly, or further include inherent factors ofthe processes, methods, articles or devices. In the absence of morelimitations, the factors defined by the statement “include one . . . ”do not exclude other identical factors in the processes, methods,articles or devices including said factors.

The above are merely preferred embodiments of the present invention, andare not intended to limit the present invention. A person skilled in theart may make various modifications and changes to the present invention.Any modification, equivalent replacement, improvement and the like madewithin the spirit and principle of the present invention all shall beincluded in a scope of protection of the present invention. It should benoted that similar reference numerals and letters refer to similar itemsin the following drawings, and thus once an item is defined in onedrawing, it does not need to be further defined and explained in thesubsequent drawings.

The foregoing descriptions are merely specific implementation manners ofthe present invention, but are not intended to limit a scope ofprotection of the present invention. Any variation or replacementreadily figured out by a person skilled in the art within the technicalscope disclosed in the present invention shall fall within the scope ofprotection of the present invention. Therefore, the scope of protectionof the present invention shall be subject to the scope of protection ofthe claims.

It should also be noted that, in the description, such relation terms asfirst and second are merely used for distinguishing one entity oroperation from the other entity or operation, rather than requiring orhinting that these entities or operations have any practical relation orsequence. Moreover, the terms “comprise”, “include” or any other variantare intended to cover non-exclusive inclusion, so that the processes,methods, articles or devices including a series of factors not onlyinclude those factors, but also include other factors listed implicitly,or further include inherent factors of the processes, methods, articlesor devices. In the absence of more limitations, the factors defined bythe statement “include one . . . ” do not exclude other identicalfactors in the processes, methods, articles or devices including saidfactors.

What is claimed is:
 1. A gas pricing method based on a compound Internetof Things (IoT), wherein the method is applied to an IoT system; the IoTsystem comprises a user platform, a service platform, a plurality ofmanagement sub-platforms, a sensor network platform and a plurality ofobject sub-platforms; each of the object sub-platforms comprises a gasmeter, wherein each of the user platform, the service platform, thesensor network platform, and the plurality of management sub-platformsincludes one or more computer devices, wherein the one or more computerdevices are communicatively connected to each other and to the gasmeter, and wherein the plurality of object sub-platforms arecommunicatively connected with the plurality of management sub-platformsvia the sensor network platform; and the method comprises: generatingand sending at a preset frequency, by each of the object sub-platforms,gas data of a corresponding gas meter to a corresponding managementsub-platform via the sensor network platform; calculating, by each ofthe management sub-platforms, a month-on-month reduction rate for a gasusage amount of each gas meter within a preset time interval accordingto gas data of each gas meter, and sending the calculated month-on-monthreduction rate for the gas usage amount of each gas meter to the serviceplatform; sorting, by the service platform, the month-on-month reductionrate respectively sent by the plurality of management sub-platforms forthe gas usage amount of each gas meter, and calculating a gas fee ofeach gas meter according to the sorted month-on-month reduction rate forthe gas usage amount of each gas meter; and sending, by the serviceplatform, the sorted month-on-month reduction rate for the gas usageamount of each gas meter and the gas fee of each gas meter to the userplatform, wherein the step of calculating a gas fee of each gas meteraccording to the sorted month-on-month reduction rate for the gas usageamount of each gas meter further comprises: calculating the gas fee ofeach gas meter according to a preset pricing rule; and reducing,according to a preset reduction rule, gas fees of gas meters of whichthe ranks of month-on-month reduction rates are located in a presetranking interval, wherein the reducing, according to a preset reductionrule, of gas fees of gas meters of which the ranks of month-on-monthreduction rates are located in a preset ranking interval comprises:reducing by 10% respectively for gas fees of gas meters of which themonth-on-month reduction rates rank top 10%, and wherein each of themanagement sub-platforms calculates the month-on-month reduction ratefor the gas usage amount of each gas meter in terms of a followingformula: $\theta = \frac{y - x}{y}$ where, the θ is a month-on-monthreduction rate, the x is gas data of a gas meter in the current month,and the y is average gas data of the gas meter in previous severalmonths of the current month.
 2. The gas pricing method based on thecompound IoT according to claim 1, wherein the method further comprises:displaying, by the user platform, sorted month-on-month reduction ratesfor gas usage amounts of gas meters and corresponding gas fees.
 3. AnInternet of Things (IoT) system, wherein the IoT system comprises a userplatform, a service platform, a plurality of management sub-platforms, asensor network platform and a plurality of object sub-platforms; theplurality of object sub-platforms are communicatively connected with theplurality of management sub-platforms via the sensor network platform;the plurality of management sub-platforms are communicatively connectedwith the service platform; the service platform is communicativelyconnected with the user platform; and each of the object sub-platformscomprises a gas meter, wherein each of the user platform, the serviceplatform, and the sensor network platform, and the plurality ofmanagement sub-platforms includes one or more computer devices, whereinthe one or more computer devices are communicatively connected to eachother and to the gas meter, and wherein the plurality of objectsub-platforms are communicatively connected with the plurality ofmanagement sub-platforms via the sensor network platform; each of theobject sub-platforms is configured to generate and send gas data of acorresponding gas meter to a corresponding management sub-platform viathe sensor network platform at a preset frequency; each of themanagement sub-platforms is configured to calculate a month-on-monthreduction rate for a gas usage amount of each gas meter within a presettime interval according to gas data of each gas meter, and send thecalculated month-on-month reduction rate for the gas usage amount ofeach gas meter to the service platform; and the service platform isconfigured to sort the month-on-month reduction rate respectively sentby the plurality of management sub-platforms for the gas usage amount ofeach gas meter, calculate a gas fee of each gas meter according to thesorted month-on-month reduction rate for the gas usage amount of eachgas meter, and send the sorted month-on-month reduction rate for the gasusage amount of each gas meter and the gas fee of each gas meter to theuser platform, wherein each of the management sub-platforms isconfigured to calculate the gas fee of each gas meter according to apreset pricing rule; and reduce, according to a preset reduction rule,gas fees of gas meters of which the ranks of month-on-month reductionrates are located in a preset ranking interval, wherein each of themanagement sub-platforms is configured to reduce by 10% respectively forgas fees of gas meters of which the month-on-month reduction rates ranktop 10%, and wherein each of the management sub-platforms calculates themonth-on-month reduction rate for the gas usage amount of each gas meterin terms of a following formula: $\theta = \frac{y - x}{y}$ where, the θis a month-on-month reduction rate, the x is gas data of a gas meter inthe current month, and the y is average gas data of the gas meter inprevious several months of the current month.
 4. The IoT systemaccording to claim 3, wherein the user platform is configured to displaysorted month-on-month reduction rates for gas usage amounts of gasmeters and corresponding gas fees.